Finding the Third Proportional to 103,631.50 and 215,052.50

Step by Step Solution

1. Step 1: Write the proportion equation
   103,631.50 : 215,052.50 = 215,052.50 : x
2. Step 2: Convert to fraction form
   103,631.50/215,052.50 = 215,052.50/x
3. Step 3: Cross multiply
   103,631.50x = 215,052.50 × 215,052.50
4. Step 4: Simplify right side
   103,631.50x = 46,247,577,756.25
5. Step 5: Solve for x
   x = 46,247,577,756.25/103,631.50
6. Step 6: Final answer
   x = 446,269.50